Text does not change to the colour i set it to when i run the program

Theyre both in the same folder called HTML5 FOLDER in the NOTEPAD++ directory. First i just had that folder on the desktop but it wasnt working, and it still doesnt work when ive moved it to the notepad++ directory.

The linkage to the CSS file might not be the same as the one in the video, I've tried many suggestions and variations on the internet , none of which have worked so far, so no point saying my code linkage was incorrec, i think there is something else to it